Take an in-depth look at the production lines rolling out some of the 21st century's hottest sets of wheels, as this series reveals the design and construction wonders taking place in some of the planet's biggest industrial plants. From factory floor to worldwide design fame, Ultimate Car Factories: is the true story of the planet's greatest factories.

Part 1: Chevrolet CamaroThe world is full of technological marvels, but what's often overlooked are the equally impressive factories in which these masterful machines are constructed.American car giant Chevrolet are reintroducing the Camaro after more than seven years out of production. It’s an iconic vehicle and a masterpiece of modern production techniques that requires a cutting edge facility to transform raw materials into a driver’s dream. That facility is a stunning 8.5million-square-foot assembly line, a megafactory which fuses cutting edge technology and high precision robots to produce one of the hottest sets of wheels about. The Chevrolet Camaro has been a classic "muscle car" for more than 40 years, but what does it take to build a classic car with 21st century technology? Now, after seven years off the factory line, Chevy is reintroducing the 2010 Camaro SS. National Geographic visits the 8.5-million-square-foot factory–one of the largest auto plants in the world–where the car is stamped from cold raw steel and assembled by high-tech, precise robots and nearly 5,800 employees, to create the car's specially-designed "unibody" construction.

Part 2: Chevy VoltThe soon-to-be-released Chevy Volt electric car just might redefine the automotive world: It can go from 0 to 60 in less than nine seconds, hit a top speed of 100 miles per hour and is good for 40 miles of zero-emission, pure electric driving. National Geographic got a rare, behind-the-scenes look inside the preproduction factory for this revolutionary vehicle. At GM's 200,000-square-foot facility outside of Detroit, Michigan—a place closely guarded for fear of industrial espionage—see what it takes to design, build, and assemble this car of the future. At this high-tech "Ultimate Factory", 18,000 parts and 1,000 hours of aerodynamic testing come together to create the Volt. And, at the heart of this revolutionary design is a 6-foot long, 400-pound battery that GM hopes will usher in a new era of automobiles.

Part 3: Armoured CarArmoured Car the processes involved in making armoured cars and how they are modified to provide maximum protection for everyone they are a must if you are a world leader, but now even mums are starting to use them. Tough enough to resist gunfire, fast enough to evade ambush, strong enough to repel ammunition strike-back. Find out what it takes to build these fortresses on wheels.